OE Quality
60-Day Returns

Walker 250-24601 Oxygen Sensor - Downstream, Downstream Front or Downstream Rear
Overview of Walker 250-24601 Oxygen Sensor for Acura and Honda
The Walker Products OE 250-24601 oxygen sensor is designed specifically for select Acura and Honda models, including the Accord, CL, MDX, Pilot, Prelude, and TL. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.
- Heated oxygen sensor with 4-wire design for precise readings
- Specific fit for Acura and Honda vehicles, including Accord and Pilot
- 31.42-inch wiring harness length with 20-gauge wire for durability
- Threaded mounting type with 18.0 mm thread diameter for secure installation
- Female connector with radiused polygon shape for reliable connection
- Overall length of 34.96 inches to accommodate factory fitment
Walker Products OE Line and Part Specifications
The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM standards. The 250-24601 oxygen sensor is engineered to match factory specifications, ensuring compatibility and performance for Acura and Honda vehicles. This sensor’s heated design allows for faster activation and improved emissions control, which is critical for maintaining compliance with environmental regulations.
Detailed Product Description and Attributes
This oxygen sensor features a 4-wire heated sensor type, which includes two wires for the heating element and two for the sensor signal. The wiring harness length measures 31.42 inches, providing sufficient reach for proper installation without excess slack. The wire gauge is 20, balancing flexibility and durability. The sensor mounts via a threaded connection with an 18.0 mm diameter, a common size for many Acura and Honda exhaust systems. The connector is female with a radiused polygon shape, designed to fit securely with the vehicle’s wiring harness. The overall length of the sensor is 34.96 inches, ensuring it fits precisely in the designated location.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for improved engine efficiency
- Helps resolve check engine light codes related to oxygen sensor failure
- Reduces emissions by providing precise exhaust gas data to the ECU
- Improves fuel economy by enabling proper combustion adjustments
- Prevents rough idling and engine hesitation caused by faulty sensors
Installation Notes and Tips
When installing the Walker 250-24601 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Thread the sensor by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Inspect wiring for damage and secure the harness to prevent contact with hot exhaust components.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24601 undergoes rigorous testing to comply with emissions regulations and OEM fitment requirements. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Acura and Honda vehicles.
| Brand | Walker |
|---|---|
| Part Number | 250-24601 |
| Position | Walker Products OE, Downstream Front |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 34.96 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 31.42 |
This part fits 32 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2004 | Honda | Pilot | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2004 | Honda | Pilot | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2003 | Honda | Pilot | 3.5L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 2002 | Acura | MDX | 3.5L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 2001 | Acura | MDX | 3.5L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1999 | Acura | CL | 3.0L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1999 | Acura | CL | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 1999 | Acura | TL | 3.2L | V6 | GAS | Downstream | Downstream placement for vehicles without California emissions certification.; Walker Products OE | |
| 1999 | Acura | TL | 3.2L | V6 | GAS | Downstream | Downstream Oxygen Sensor compatible with Non-California ESV vehicles.; Walker Products OE | |
| 1999 | Honda | Accord | 3.0L | V6 | GAS | Downstream | Downstream placement for vehicles without California emissions certification.; Walker Products OE | |
| 1999 | Honda | Accord | 3.0L | V6 | GAS | Downstream | Downstream Oxygen Sensor compatible with Non-California ESV vehicles.; Walker Products OE | |
| 1998 | Acura | CL | 3.0L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1998 | Acura | CL | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 1998 | Honda | Accord | 3.0L | V6 | GAS | Downstream | Downstream placement for vehicles without California emissions certification.; Walker Products OE | |
| 1998 | Honda | Accord | 3.0L | V6 | GAS | Downstream | Downstream Oxygen Sensor compatible with Non-California ESV vehicles.; Walker Products OE | |
| 1997 | Acura | CL | 3.0L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1997 | Acura | CL | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 1997 | Honda | Accord | EX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1997 | Honda | Accord | 2.7L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1997 | Honda | Accord | Value Package | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1997 | Honda | Accord | SE | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1997 | Honda | Accord | LX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1997 | Honda | Accord | DX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Accord | EX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Accord | 2.7L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | |
| 1996 | Honda | Accord | Value Package | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Accord | LX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Accord | DX | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Accord | 25th Anniversary Edition | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 1996 | Honda | Prelude | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 1996 | Honda | Prelude | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 1995 | Honda | Accord | 2.7L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.